A: Any cleaner that does not have an ammonia base. Also do not use FrogLube products, we had one customer soak it and caused discoloration. If you are trying to restore it back to a shiny coat you can clean and then use a polishing wheel and Mothers Mag and Aluminum Polish. We like the ALG Go Juice for oil.

A: No this BCG will not work with PSA KS47 Upper. The cuts done on PSA KS47 on the bolt carrier and bolt assembly are specc'd to accept AK Mags.

A: At this time there is no ETA. It won't be by end of this year. Hopefully around the 1st quarter of 2024.

A: Yes, it will work unless Radical does their own proprietary rifle, but our bcg will work in any AR-15 7.62x39 mil-spec lower/upper receivers.

A: We sell this item as just the bolt carrier itself and pricing for quantities is listed on the products page: https://www.blackriflearms.com/M16-Enhanced-Bolt-Carrier-and-Key-with-Buffer-Technology-_p_20.html

A: The metals we use are MPI tested, but we do not MPI test each carrier.

A: No our BCG is not machined for side chargers. One would have to modify it and that is best done through a machining company. Some of our customers have used Paladin Machine Service: https://tp555.com/

A: Yes this comes with our stainless steel enhanced firing pin.

A: Should be fine to clean in ultrasonic cleaner. As for cleaner as long as it doesn't have ammonia you should be good. I have heard Frog Lube discolors the NiB (just a warning).

A: The oversized carrier buffer has a larger diameter which makes it more centered, our customers who are competition shooters choose oversized buffer to keep carrier more centered in the upper and lower increasing accuracy. As for purchasing an additional optional carrier buffer that is for those that like spare parts in their firearms toolbox.

A: No, our DI BCG are AR-15 mil-spec to receive AR-15 magazines. The AR47 by PSA have different specs to accept AK magazines.

A: Our Bolt Carrier Groups will work with any DI Uppers that utilize an AR-15 Mil-Spec bolt carriers.

A: ETA is probably around 5 to 8 weeks.

A: Functions in any AR-15 that utilizes a mil-spec bcg,

A: Call me at 386.410.5162. I have only 1 bolt carrier that we can do as an AR-15 bcg. Will ask for your email to verify it's you.

A: Yes our AR-15 7.62x39 BCG will fit any mil-spec AR-15 lower or upper from any manufacturer that are within spec.

A: No DFA Short Buffer Systems utilize a much small overall length than a Mil-Spec BCG.

A: It will work in any mil-spec upper/lower receivers, so if BCA is a AR-15 mil-spec rifle it will work.

A: Because this caliber is an AR-15 any mil-spec AR-15 charging handle will fit. The .308/AR10 accessories will not be compatible so stick to AR-15 such as the Radian Talon for the AR-15.

A: We do not carry bolt carrier groups for side chargers.

A: They are back in stock.

A: You will need to take calipers to the bolt face if you are not sure. It should be .125" if a true 7.62x39. As for AR47 you will need to stick the company that produced your rifle to get a BCG, you can't mix AR-15 BCG with an AR47 as they are machined differently as AR47 has to be cut differently to accept AK mags.

A: Yes to both questions. You can view all the products information under the products "Product Specifications" tab. Thank you!

A: No we don't, that is a proprietary system exclusive to PSA.

A: It will be approximately 4 to 6 weeks before they are back in stock.

A: We are hoping for end of May to June

A: Yes we have many customers who have fitted their BCA rifle with our Bolt Carrier Groups

A: Yes the bolt fits any mil-spec / mil-STD M4 barrel extension.

A: I don't have a definite date, but current eta is 4 to 6 weeks.

A: Material is listed under the "PRODUCTS SPECIFICATION" tab. Click on it and it will show you materials used in Bolt Carrier and Bolt Assembly.

A: I don't have an ETA on next round of bolt carriers. They come in at various times. We have had 3 rounds thus far of them this year, so they may come back in stock in April or May.

A: It can but you would need to find a machinist with the proper tooling. You would not only be removing the heat treatment in that area but also plating.

A: With all our 7.62x39 products from Uppers to BCG's we use our enhanced firing pins and we see no issues. We have seen on occasion issues with light strikes with TULA and upon examining the ammunition we noted the primers were not seated properly but push too far in so that can cause light strikes. We tell customers Tula can cause issues from light strikes to stuck casings which can cause premature extractor failures. Stick with Wolf, Silver Bear etc. Another thing that can cause light strikes if one has an enhanced firing pin is a incorrectly installed hammer spring, a drop in trigger with a light spring and on rare occasions a hammer riding down with the bolt carrier.

A: They come in and out of stock on a regular basis. We constantly have them being machined, but no matter how many we get in we sell out really fast. We have a new product of them coming into stock (nitrided BCG with our patented polymer design) around end of January, and the NiB BCG will be back in stock around mid-February or soon thereafter.

A: Not sure where "upgraded" extractor comes from. We just only use extractors that are machined from materials called out and all our bolt assemblies and extractors from this caliber are machined from beginning as 7.62x39 bolt assemblies or extractors. We do not take other bolts or extractors and machine them to 7.62x39. What bolt assemblies and/or extractors we we sell on the website is what we use to assembly our 7.62x39 bolt carrier groups.

A: Extractors come back in tomorrow from finish and if they look good and pass the function test we will be putting back BCG in stock this week.

A: No, AR-15 bolt carriers are not compatible with AR47 or any rifle that takes AK Magazines.

A: Our Bolt Carrier works with any AR-15 rifles that utilize an AR-15 mil-spec overall dimensioned bolt carrier and AR-15 7.6x39 Magazines. If your setup utilizes AK magazines this bolt carrier will not work.

A: Yes, it will work in any AR-15 7.62x39 mil-spec upper. The only platform it won't work in is proprietary AR47 rifles that take AK mags.

A: We should have them back in stock this Thursday or Friday (Oct 15/16).

A: Yes it was, but a few boxes didn't last long. We have another shipment coming in, I believe, at the end of this week and more in the making.

A: We have never have had to replace a polymer buffer on the bolt carrier in the 11 yrs we have been in business. Under normal operations of the firearm it will probably never need to be replaced. We had a customer about 4 or 5 yrs ago tell us he is retired and all he does is reload and shoot and he had over 20,000 rounds on one of our piston systems and his piston bolt carrier with the polymer buffer looked still new. It's a lifetime warranty part under normal firearm usage.

A: No its not compatible with any folding stock, under our Disclaimer we list it as not being compatible due to the design of the polymer.

A: Current ETA is about 2 to 3 weeks

A: We offer discounts for LE/MIL. Just sign up for this program under the registration page and send in your first responder (if your a firefighter) credentials.

A: Our BCG has an overall mil-spec dimension so if your Primary Arms AR-15 7.62x39 is to mil-spec our bcg will work just fine.

A: They all come default with a standard buffer installed, but those that want to use an oversized buffer can purchase one and install it if they are want to have a bolt carrier more centerline. If a buffer tube is out of spec or canted it can cause binding issues as the oversize carrier buffer has a larger diameter. If a buffer tube is canted one can reinstall it and hold it straight while tightening it, if a buffer is out of spec while it can work with a standard carrier (due to diameter size) it won't work with an oversized carrier buffer and the buffer tube would need to be replaced.

A: No, our bolt carriers are designed for AR-15 uppers that accept AR-15 magazines. KS-47 bolt carrier group are designed to accept AK-Magazines; therefore, they are incompatible.

A: We use our 7.62x39 bcg for our all our uppers. Yes it includes an enhanced firing pin. We run H2 for all our 7.62x39 carbine uppers. If you are having light strikes with steel case you may want to first make sure if you have a standard firing pin or an enhanced firing pin. If you have an enhanced firing pin then the second most common thing we see is the hammer spring is installed incorrectly. If you would like us to look at your hammer spring please send us a message through our website and include a pic of your lower with your hammer cocked so we can see the hammer spring install.

A: No, our bolt carriers are AR-15 bolt carriers, and; therefore, will not work with AK magazines. We do not carry any bolt carriers designed for use with AK magazines.

One would have to purchase a bolt carrier and send it to Paladin Machining Services in Kershaw, SC for such services.

A: Yes, the 7.62x39 BCG comes with an enhanced firing pin.

A: The oversized polymer buffer has a larger radius surface to center the bolt carrier group in the rifle.

A: Our bolt carrier and key have a limited lifetime warranty. Small parts have a 6 month limited warranty. To see full warranty information please see this link: https://blackriflearms.com/WARRANTY_ep_41-1.html

A: Our bolt carrier is mil-spec to dimensions so it will fit any AR-15 that is built to mil-spec. It is a drop-in ready BCG; however, we do advise end users to check headspace no matter who's barrel/bcg you purchase.

A: No, all bolt carriers/bolt carrier groups we sell by themselves on the website are for Direct Impingement. If you need a spare piston carrier and have a piston conversion or piston upper of ours you can purchase one by calling it in. We will verify existing piston conversion/upper within our database and send you an invoice to pay. Since our piston bolt carriers are designed only to work with our piston systems we do not offer them as a standalone product to purchase on our website.

A: Due to the design of our Bolt Carrier with the polymer end the Law Tactical Folder is not compatible.

A: Yes all our BCG's come with a melonite bolt assembly. Under product 'Specifications' tab it will call out all materials, coatings etc as we try to give as much information as we can so customers can make an informed decision on our products.

As for the other questions we have removed it for further followup per an email as it concerns a piston build and we removed your phone number to keep your personal phone number protected.

A: Be aware that there are some rogue 6.5 Grendel barrels out there reamed to use the 0.125 bolt. Contact the barrel manufacturer directly or work with a qualified gunsmith if you are unsure.

A: 7.62x39 is not interchangeable with a 6.5 Grendel, they have two different bolt faces. 7.62x39 has a .125" Bolt Face and the 6.5 Grendel and LBC 264 have a .136" Bolt Face. For a 6.5 BCG you would need this BCG: https://www.blackriflearms.com/M16-65-Grendel-Enhanced-Bolt-Carrier-Group-with-Buffer-Technology-_p_296.html

A: Gibbz Arms and Spartan Side Charger with no modifications. The other side chargers on the market require bolt carrier modifications, we don't recommend any side chargers that require bolt carrier modifications. DFA folders require the bolt carrier to be modified to work with their proprietary buffer and spring assembly.

A: We always suggest having a spare bolt assembly and extractor. We see little issues with broken bolt lugs, you mostly see failures with the extractors. An overgassed firearm will cause more stress on the extractor and premature extractor failures in this caliber.

A: JP Silent Capture Spring is not compatible with our carriers buffers. In order to use JP Silent Capture Spring, the end user would need to make modifications to the carrier's integrated buffer.

A: The KS47 is designed for use with AK mags; therefore, our AR-15 bolt carriers will not work with KS47 or any hybrid rifle that runs AK mags as the bolt carrier has to clear the AK mags so they have different tolerances than mil-spec AR-15 bolt carriers.

A: Our BCG is mil-spec to dimensions so it should fit any AR-15 that is built to mil-spec.

A: All of our AR-15/M16 BCG's are for the AR-15 platform and if you want to pair the Bolt Carrier from your 7.62x39 to your 5.56 you can; however, you would need to switch out the bolt assembly to a 5.56 bolt assembly and the enhanced firing pin to standard AR-15 firing pin. The bolt carrier, cam pin and firing pin retaining pin are interchangeable with any AR-15 upper. You can use any mil-spec AR-15 upper receiver with our Bolt Carrier. Aero Precision makes some nice uppers/lower receivers.

A: Yes the 7.62x39 utilizes an AR-15 bolt carrier that you can swap other AR-15 bolts, firing pins, etc if one would need to change over to a 5.56, 6.5 Grendel, 5.45x39 and other AR-15 calibers. So if one gets this 7.62x39 BCG then wants to utilize it in a 5.56 then the only parts you would need to change out is bolt assembly and firing pin as our 7.62x39 BCG utilizes an enhanced firing pin so one would need to swap it out to a standard AR15 firing pin.

A: Our bolt carrier will fit any AR-15 that utilizes mil-spec bolt carrier. If Colt utilizes a mil-spec bolt carrier group in their Sporter Rifle then yes our bolt carrier group will work with your setup.

A: We have had other customers tap and drill carriers for use with side charging uppers our only disclaimer is it voids the warranty and you will have bare metal which will allow for corrosion.

A: This BCG is for direct impingement, it's not a piston carrier. All the BCG you see listed for sell are bolt carrier and key which is only utilized in your standard mil-spec AR-15 calibers. This bcg will work with Radical or any other mil-spec AR-15.

A: No, our Direct Impingement Carrier with Buffer Technologies does not replace existing buffers in the lower receiver. Our bolt carriers with buffer technology has an overall mil-spec length, and, therefore, requires the use of a buffer.

A: Yes, our Direct Impingement Carrier with Buffer Technologies have an overall mil-spec length and therefore requires a buffer.

A: Yes this carrier will drop in any mil-spec standard AR-15 Upper.

A: You can use any firearm cleaning solution(s) as long as it does not contain ammonia. Failzero/UCT Coating recommends no ammonia based cleaning solutions due to the NiB coating.

A: No, we assemble them and disassemble them with the buffers in. Just put bolt assembly in as normal, then cam pin, then put the firing pin in between the carrier's long slits into the bolt assembly, then the firing pin retaining pin. We've never have had to remove the buffer to get the small parts assembled or disassembled.

A: There shouldn't be, but we recommend having a gunsmith with proper tooling machine it unless you have the proper tooling. Any modifications to bolt carrier voids all manufacturing warranty, though.

A: If the barrel is headspaced for the .125 it should work because the case dimesions are identical to 7.62x39 where the case interfaces with the bolt and extractor.

A: HTP/MPI Tested: HTP/MPI test, our material is checked prior to machining by our supplier of 9310.

A: We do sell replacement polymer buffers to only customers that have purchased one of our bolt carriers.

A: It will run fine in PDW/SBR. You would only need to adjust the system if your gas port is oversized. We run PDW in Piston and Direct Impingement all the time. Here is a video of us running PDW with our Piston Upper which uses our BCG with integrated buffer: https://youtu.be/E4nDGzL2fRg

A: Yes, the 7.62x39 bolt carrier group comes with an enhanced firing pin. This carrier is complete and ready to drop in for use in ones rifle.

A: The carrier and polymer buffer are lifetime warranty against manufacturer defects. All other small parts are known replacement parts and are not covered by warranty other than the bolt assembly comes with a 4-month warranty against manufacturer defect by OEM.